公开(公告)号：GB2351376A

公开(公告)日：2000-12-27

申请号：GB0015195

申请日：2000-06-22

Applicant: IBM

Inventor： DORRANCE DANIEL M ,  HUGHES JOHN P ,  MALCOLM JERRY WALTER

IPC: G06Q40/00 ,  G06F17/60

Abstract: In converting data between different protocols in which fields may take on a credit/debit indication, two attributes are employed, one associated with account type and the other associated with transaction type, which are interpreted to insure proper signage. For financial protocols such as OFX and Gold, an abstract account type is assigned to accounts as appropriate and employed, together with the existing transaction type, to determine how sign values (positive vs. negative) for a data element in a particular transaction should be altered, if at all, to be consistent between the two financial protocols. The method of determining signage should permit recreation of the original sign if necessary for error analysis. In one embodiment, an abstract account type/transaction type logic table 220 for the method of determining appropriate sign values may permit only reversal or preservation of a current sign value during conversion between protocols. The invention may be extended to conversion between any two protocols which convey values which may be either positive or negative by specifying parameters determining proper signage and defining a rigorous model of sign manipulation.